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BacteriuriaPhase 1NCT01033383

Dosing Study of Cranberry Capsules for the Prevention of Bacteriuria in Nursing Home Residents

A Phase 1 study testing Cranberry Capsule in people with Bacteriuria, run by Yale University at 14 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will investigate whether there is a particular dose of cranberry capsules that is effective in preventing the occurrence of urinary tract infections in females at least 65 years of age or older who live in a nursing home and who have a history of urinary tract infections. Read more about this study

Who is it for?
Ages 65 years and older, women onlyHealthy volunteers can take part
Conditions the study is for
Bacteriuria
What is being tested?
Cranberry Capsule
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
14 sitesUnited States
Study dates
Dec 2009to Dec 2010
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 65 years and older
  • Women only
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • Female nursing home residents 65 years of age or older with history of urinary tract infection within the past year.

Who cannot join

  • residents that are not expected to be in the nursing home for at least one month (i.e., short term rehabilitation, pending discharge, terminal [life expectancy < 1 month]);
  • residents who are on chronic suppressive antibiotic or anti-infective (i.e., mandelamine) therapy for recurrent UTI;
  • residents with end stage renal disease on dialysis (they do not regularly produce urine);
  • residents unable to produce a baseline clean catch urine specimen for collection;
  • residents on warfarin therapy because of a potential interaction of warfarin and cranberry juice;
  • residents with a history of nephrolithiasis because cranberry may increase the risk of nephrolithiasis.

Trial locations and contacts

14 sites in 1 country.

14 sites in 1 country

United States14 sites
  • Northbridge Health Care Center

    Bridgeport, Connecticut, 06606

  • Sheriden Woods Health Care Center

    Bristol, Connecticut, 06010

  • The Carolton Chronic and Convalescent Hospital

    Fairfield, Connecticut, 06824

  • Glastonbury Health Care Center

    Glastonbury, Connecticut, 06033

  • Middlesex Health Care Center

    Middletown, Connecticut, 06457

  • Wadsworth Glen Health Care and Rehabilitation Center

    Middletown, Connecticut, 06457

  • Beacon Brook Health Care Center

    Naugatuck, Connecticut, 06770

  • Laurel Ridge Health Care Center

    Ridgefield, Connecticut, 06877

  • Shady Knoll Health Center

    Seymour, Connecticut, 06483

  • Litchfield Woods Health Care Center

    Torrington, Connecticut, 06790

  • Maefair Health Care Center

    Trumbull, Connecticut, 06111

  • Masonicare Health Center

    Wallingford, Connecticut, 06492

  • Abbott Terracee Health Center

    Waterbury, Connecticut, 06702

  • Saint Mary Home

    West Hartford, Connecticut, 06117

Other trials in United States

About this study

Official title: Pilot Study: Dosing Study of Cranberry Capsules for the Prevention of Bacteriuria in Nursing Home Residents

This study will investigate whether there is a particular dose of cranberry capsules that is effective in preventing the occurrence of urinary tract infections in females at least 65 years of age or older who live in a nursing home and who have a history of urinary tract infections. The Yale research team will be enrolling 80 subjects in total over several nursing home locations within Connecticut.

Read the detailed description

Each subject was enrolled after providing a baseline urine specimen. Cranberry/placebo capsules were consumed for 30 days. Urine specimens were obtained weekly for 4 weeks.

Conditions
Bacteriuria
Being tested
Placebo, Cranberry Capsule
Medical subject headings
Bacteriuria

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PlaceboDietary supplement

    36 milligram (mg) placebo capsule taken before quiet hours of sleep (qhs).

  • Cranberry CapsuleDietary supplement

    Also called Ellura

    36 milligram (mg) cranberry capsule, taken before quiet hours of sleep (qhs).

Study groups in NCT01033383
Study groupRoleWhat they receive
3 placebo capsulesPlacebo comparator3 placebo capsules qd
Receives: Dietary Supplement: Placebo
1 cranberry capsule & 2 placebo capsulesExperimental1 active cranberry capsule and 2 placebo capsules qd
Receives: Dietary Supplement: Placebo; Dietary Supplement: Cranberry Capsule
2 cranberry capsules & 1 placebo capsuleExperimental2 active cranberry capsules and 1 placebo capsules qd
Receives: Dietary Supplement: Placebo; Dietary Supplement: Cranberry Capsule
3 cranberry capsulesExperimental3 active cranberry capsules qd
Receives: Dietary Supplement: Cranberry Capsule

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. E.Coli Bacteriuria Plus Pyuria

    The number of urine cultures and urinalyses (obtained weekly) found with >100,000 CFU/ml growth of E.coli and >10 WBC.

    Measured: One month

Secondary outcomes (2)
  1. Other Bacteriuria Plus Pyuria

    The number of urine cultures and urinalyses (obtained weekly) found with other bacteriuria plus any white blood cells (WBCs) >100,000 colony that include: Proteus, Klebsiella, Enterococcus, beta-hemolytic Streptococci, viridans Streptococci, and organella morganii, Citrobacter freundii, and coagulase-negative Staphylococcus.

    Measured: one month

  2. Not Growth

    The number of not growth, these include no growth, growth <100,000 CFU/ml, growth >100,000 CFU/ml but no WBCs, and mixed flora.

    Measured: one month

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Dec 2009 (estimated)
  2. Study startDec 2009
  3. Primary completionOct 2010
  4. Study completionDec 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Single group
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01033383
Sponsor's protocol ID
0908005581
Other IDs
K23AG028691-01A2, UL1RR024139, KL2RR024138
Status last verified
Jul 2013
First submitted
15 Dec 2009
Last updated
15 Aug 2013
Data monitoring committee
No

Publications

  • Bianco L, Perrelli E, Towle V, Van Ness PH, Juthani-Mehta M. Pilot randomized controlled dosing study of cranberry capsules for reduction of bacteriuria plus pyuria in female nursing home residents. J Am Geriatr Soc. 2012 Jun;60(6):1180-1. doi: 10.1111/j.1532-5415.2012.03976.x. No abstract available.

    PubMed 22690994
  • Williams G, Stothart CI, Hahn D, Stephens JH, Craig JC, Hodson EM. Cranberries for preventing urinary tract infections. Cochrane Database Syst Rev. 2023 Nov 10;11(11):CD001321. doi: 10.1002/14651858.CD001321.pub7.

    PubMed 37947276
  • Williams G, Hahn D, Stephens JH, Craig JC, Hodson EM. Cranberries for preventing urinary tract infections. Cochrane Database Syst Rev. 2023 Apr 17;4(4):CD001321. doi: 10.1002/14651858.CD001321.pub6.

    PubMed 37068952

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Cranberry Capsule in people with Bacteriuria, run by Yale University at 14 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Aug 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 14 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 15 Aug 2013). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

E.Coli Bacteriuria Plus Pyuria (time frame: One month). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01033383, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Aug 2013.

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